Description

After opening the quiz, the quiz can lock down at any unpredictable time if a student tries the quiz and there is no undo. The teacher may not know about this beforehand and the quiz may end up in an unfinished state.

Some teachers are used to previewing things by switching to student role. If they attempt a quiz in this role, the quiz is locked down without warning and there is no undo. This occured in the usability tests of Development:Usability_testing_in_August_2008/Issues_found#Sort_out_the_different_preview_modes August 2008.

* An attempted quiz cannot be edited
* After opening the quiz, the quiz can lock down at any unpredictable time if a student tries the quiz and there is no undo. The teacher may not know about this beforehand and the quiz may end up in an unfinished state.
* Some teachers are used to previewing things by switching to student role. If they attempt a quiz in this role, the quiz is locked down without warning and there is no undo. This occured in the usability tests of Development:Usability_testing_in_August_2008/Issues_found#Sort_out_the_different_preview_modes August 2008.

Goals:

* Always warn the user if the are about to do something that affects the set of choices they can make later (User control and freedom), and as the undo here is not obvious, tell the user about it
* Make the user aware of the choices they have in the quiz edit screens, where their actions' consequences are the most obvious.

* An attempted quiz cannot be edited
* After opening the quiz, the quiz can lock down at any unpredictable time if a student tries the quiz and there is no undo. The teacher may not know about this beforehand and the quiz may end up in an unfinished state.
* Some teachers are used to previewing things by switching to student role. If they attempt a quiz in this role, the quiz is locked down without warning and there is no undo. This occured in the usability tests of Development:Usability_testing_in_August_2008/Issues_found#Sort_out_the_different_preview_modes August 2008.

Goals:

* Always warn the user if the are about to do something that affects the set of choices they can make later (User control and freedom http://www.useit.com/papers/heuristic/heuristic_list.html), and as the undo here is not obvious, tell the user about it
* Make the user aware of the choices they have in the quiz edit screens, where their actions' consequences are the most obvious.

* An attempted quiz cannot be edited
* After opening the quiz, the quiz can lock down at any unpredictable time if a student tries the quiz and there is no undo. The teacher may not know about this beforehand and the quiz may end up in an unfinished state.
* Some teachers are used to previewing things by switching to student role. If they attempt a quiz in this role, the quiz is locked down without warning and there is no undo. This occured in the usability tests of Development:Usability_testing_in_August_2008/Issues_found#Sort_out_the_different_preview_modes August 2008.

Goals:

* Always warn the user if the are about to do something that affects the set of choices they can make later (User control and freedom http://www.useit.com/papers/heuristic/heuristic_list.html), and as the undo here is not obvious, tell the user about it
* Make the user aware of the choices they have in the quiz edit screens, where their actions' consequences are the most obvious.

* An attempted quiz cannot be edited
* After opening the quiz, the quiz can lock down at any unpredictable time if a student tries the quiz and there is no undo. The teacher may not know about this beforehand and the quiz may end up in an unfinished state.
* Some teachers are used to previewing things by switching to student role. If they attempt a quiz in this role, the quiz is locked down without warning and there is no undo. This occured in the usability tests of Development:Usability_testing_in_August_2008/Issues_found#Sort_out_the_different_preview_modes August 2008.

Goals:

* Always warn the user if the are about to do something that affects the set of choices they can make later (User control and freedom http://www.useit.com/papers/heuristic/heuristic_list.html ), and as the undo here is not obvious, tell the user about it
* Make the user aware of the choices they have in the quiz edit screens, where their actions' consequences are the most obvious.